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org12 Molecule models of ethanol and ethanal

Left: 3 models of the alcohol ethanol: 2 bead models compared to a "table tennis models".
Right: 3 models of the aldehyde ethanal.
The macroscale "table tennis models" are very useful for demonstration in the school.
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The microscale models you can do yourself and keep them.
Left: Model of ethanol by welding plastic beads (from toy shops).
Photo 2: Model of ethanol made of glass beads by wire. Photo 3 and rechts: Bead models of the aldehyde.
The welded model of ethanal (right) has an important advantage:
You can show that there are two different bondings between C atom (black bead) and O-Atom (red bead). The sigma bonding is represented by the welding contact, the yellow wire is a model for the pi bonding.